private ScheduledFuture<@Nullable Void> submitToExecutor(Schedule schedule) {
        return executor.schedule(this, schedule.delay, schedule.unit);
      }
    }

    /**
     * Contains the most recently submitted {@code Future}, which may be cancelled or updated,
     * always under a lock.
     */
    private static final class SupplantableFuture implements Cancellable {
      private final ReentrantLock lock;

      private ScheduledFuture<@Nullable Void> submitToExecutor(Schedule schedule) {
        return executor.schedule(this, schedule.delay, schedule.unit);
      }
    }

    /**
     * Contains the most recently submitted {@code Future}, which may be cancelled or updated,
     * always under a lock.
     */
    private static final class SupplantableFuture implements Cancellable {
      private final ReentrantLock lock;

    Future<?> scheduled = executorService.schedule(task, delay, timeUnit);
    /*
     * Even when the user interrupts the task, we pass `false` to `cancel` so that we don't
     * interrupt a second time after the interruption performed by TrustedListenableFutureTask.
     */
    task.addListener(() -> scheduled.cancel(false), directExecutor());
    return task;
  }

  /**

 */
package org.codelibs.fess.app.web.admin.scheduler;

import org.lastaflute.web.validation.Required;
import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

import jakarta.validation.constraints.Size;

/**
 * Form class for editing scheduled job configurations in the admin interface.
 * This form extends CreateForm to include fields necessary for updating existing scheduler entries,

    @Resource
    private JobHelper jobHelper;

    /** The job class to be executed by this scheduler */
    protected Class<? extends LaJob> jobClass = ScriptExecutorJob.class;

    /** The timestamp when the scheduler was last updated */
    protected long schedulerTime;

    @Override
    public void schedule(final LaCron cron) {
        schedulerTime = systemHelper.getCurrentTimeAsLong();

    /**
     * Registers a scheduled job with the job manager.
     *
     * @param scheduledJob the scheduled job to register
     */
    public void register(final ScheduledJob scheduledJob) {
        final JobManager jobManager = ComponentUtil.getJobManager();
        jobManager.schedule(cron -> register(cron, scheduledJob));
    }

    /**
     * Registers a scheduled job with the specified cron scheduler.
     *

    }

    /**
     * Retrieves scheduler settings with pagination.
     *
     * @param body the search parameters for filtering and pagination
     * @return JSON response containing scheduler settings list
     */
    // GET /api/admin/scheduler
    // PUT /api/admin/scheduler
    @Execute
    public JsonResponse<ApiResult> settings(final SearchBody body) {

    /**
     * The sort order for displaying this scheduled job.
     */
    @Required
    @Min(value = 0)
    @Max(value = 2147483647)
    @ValidateTypeFailure
    public Integer sortOrder;

    /**
     * The username of who created this scheduled job.
     */
    @Size(max = 1000)
    public String createdBy;

    /**
     * The timestamp when this scheduled job was created.
     */

import jakarta.annotation.Resource;

/**
 * Admin action for Scheduler management.
 *
 */
public class AdminSchedulerAction extends FessAdminAction {

    /**
     * Default constructor.
     */
    public AdminSchedulerAction() {
        super();
    }

    /** Role name for admin scheduler operations */
    public static final String ROLE = "admin-scheduler";

 */
package org.codelibs.fess.app.web.admin.scheduler;

/**
 * The search form for Scheduler.
 */
public class SearchForm {

    /**
     * Default constructor for SearchForm.
     */
    public SearchForm() {
    }

    /**
     * The ID field for searching scheduled jobs.
     */
    public String id;